paisa
Veteran Member
- Joined
- Oct 22, 2000
- Location
- Phoenix, AZ
Here are the result of my second oil analysis. I am confused with the results, since the TBN actually increased at the second oil test. At 10k I changed both oil filters and added whatever oil was needed.
The car has 60,000 miles now and there was about 1/2 quart added in between the filter changes, and I changed the oil at 60,000 but wanted the oil analysis for reference purposes.
Why would the TBN go from 8.7 to 12.8?
Miles 20000 10000
glycol Neg Neg
water <.05 <0.05
fuel <1.0 <1.0
viscosity 13.6 11.7
solids n/a n/a
Soot 3 2.7
Oxd 34.4 23.3
Nox 22.9 14.3
TNB 12.8 8.7
TAN n/a n/a
Fe 62 53
Cr 2 3
Pb 1 2
Cu 4 5
Sn 1 2
Al 11 14
Ni 2 2
Ag 0 0
Mn 1 1
Si 5 11
B 27 14
Na 2 3
Mg 12 18
Ca 4319 4383
Ba 0 0
P 1218 1251
Zn 1377 1397
Mo 0 0
Ti 0 0
V 0 0
Cd 0 0
The car has 60,000 miles now and there was about 1/2 quart added in between the filter changes, and I changed the oil at 60,000 but wanted the oil analysis for reference purposes.
Why would the TBN go from 8.7 to 12.8?
Miles 20000 10000
glycol Neg Neg
water <.05 <0.05
fuel <1.0 <1.0
viscosity 13.6 11.7
solids n/a n/a
Soot 3 2.7
Oxd 34.4 23.3
Nox 22.9 14.3
TNB 12.8 8.7
TAN n/a n/a
Fe 62 53
Cr 2 3
Pb 1 2
Cu 4 5
Sn 1 2
Al 11 14
Ni 2 2
Ag 0 0
Mn 1 1
Si 5 11
B 27 14
Na 2 3
Mg 12 18
Ca 4319 4383
Ba 0 0
P 1218 1251
Zn 1377 1397
Mo 0 0
Ti 0 0
V 0 0
Cd 0 0